[JASS] Need help making a function

[bloodybrains]

I need to make a function that returns a units techtree - requirements and techtree- requirement levels.

I don't believe there is a GUI action for this, but I could be wrong.
Any ideas on how to begin making this function?

 

[PurplePoot]

Make a giant if/then/else/elseif that lists all the units and their techtree requirements.

 

[bloodybrains]

I thought about doing that, but there are so many units, I thought there must be a more efficient way.

Here's some more info

It's a TD where every Tower/Spell cost a certain type and amount of mana.
There are six different types.
I'm using upgrades to simulate each different type, and then adding it to a towers techtree requirements.
EX: Basic Tower costs 2 generic mana points.
techtree requirements - Generic Mana
techtree requirement levels - 2

Now, the idea is that when the tower begins construction, it will set the level of Generic Mana minus 2. Simulating the spending of generic mana, and preventing other towers that cost more generic mana to be unbuildable.

I know I could just make a trigger for each tower, or a giant if/then/else, but I was hoping for a more efficient way. Like the function that returns the techtree requirements.
Any suggestions for any other methods are welcome.

Thanks for your time.

 

[PurplePoot]

Well, if you only need to store one value (eg. the amount of generic mana), you could always use Point Value.